No

Not quite but almost...

You can influence your childs gender, but it would take you too long and drive you insane.

The child's gender is randomly selected when you get married. If you save your game before
that day and don't save again until your child is born you could change its gender. That
would require you replaying about 30 days! And there would be no guarentee that the gender
would change the second time! It isn't worth it!